Bicycle



2 'Sheets Sheet 1.

O. J. GADD.

(No Model.)

BICYCLE.

m: mums mans co. mom-urua. WASHINGTON, a. c

2 Sheets Sheet 2..

O. J. GADD.

(No Model.)

BICYCLE.

Patented Feb. 15, 1898.

l I! llfll M W W Nrrso STATES CHARLES J. GADD, OF PHILADELPHIA,PENNSYLVANIA.

BICYCLE.

SPECIFICATION forming part of Letters Patent No. 599,058, dated February15, 1898.

Application filed January 1 8, 1 8 9 7. Serial No- 619 5 2 8 (N0 model.)

To all whom it may concern:

Be it known that I, CHARLES J. .GADD, a subject of the Queen of GreatBritain, and a resident of the city and county of Philadelphia, State ofPennsylvania, have invented certain new and useful Improvements inBicycles or other Vehicles, of which the follow ing is a specification.I

My invention relates to improvements in bicycles or othervehicles, andmore particularly to improvements in means for securing in place in theframe the saddle-post orjthe handle-bar post; and the object of myinvention is to furnish, first, an improved adjustable means for lockingthe saddle or handlebar post to the frame of the vehicle; second, tofurnish, in connection with said adjustable locking means, an improvedmeans for adjusting and looking on the steering-bar the movable cupwhich retains the balls of the steering-head in place.

In the accompanying drawings, forming part of this specification, and inwhich similar letters of reference indicate similar parts throughout theseveral views, Figure 1 is a central sectional elevation of thesteeringhead and part of the frame-of a bicycle furnished with myimprovements; Fig. 2, a central sectional elevation of the upper portionof the rear tube of a bicycle, which carries the saddle-post, and theparts of the frame connected therewith, showing a reinforcingtubecarried by the rear or.saddle-post tube and my improved means forclamping said tube to the seat-post; Fig. 3, a similar View showing therear or saddle-post tube prolonged and adapted to be clamped to thesaddle-post; and Fig. 4, a perspective view of the upper end of my tubefor grasping and holding in place the saddle or handle-bar post, part ofthe latter being shown within the tube.

A is the frame of a bicycle; B, Figs. 1 and 4, the handle-bar post; 0,Figs. 2, 3, and 4, the saddle-post.

D, Fig. 1, is the steering-bar. I The upper end of this bar is furnishedwith a number of slits F and with a male thread E, which may be slightlytapered, if desired, toward the upper end of the bar, as shown in thedrawings.

G is a nutwith a female thread of suitable taper, adapted to be screweddown on of the smallest diameter being adapted to be screwed on thethread E on the steering-bar and the one of the largest diameter beingadapted to engage a male thread L, cut on the lower end of the nut G.

N is a washer that may be placed between nut J and lock-nut K, suitablemeans being employed to prevent said washer from turning. The adjustablecup J having been screwed down against the balls I, the nut K is screweddown until it engages the top of the cup J firmly. The nut G is nowscrewed down, clamping the split ends of the steering-bar against thehandle-bar post, its

threaded end L engaging the corresponding female thread in nut K, thislatter nut acting as a jam-nut to both nuts G J.

In Figs. 2 and 3 my invention is shown arranged for holding asaddle-post in place, in Fig. 2 a flush-joint frame being shown, in Fig.3 the ordinary coupling or raised-joint construction. In Fig. 2, M is areinforcing piece or bushing, the lower end of which is brazed'orotherwise suitably fastened to the frame A. The upper end of this pipeis free, and it is split at F F and furnished with a male thread E,which may be tapered, if desired, as described in connection withFig. 1. G is a nut adapted to be screwed down on thread E in order toforce the split ends of tube M against the saddle-post C. K is a jam-nutsimilar to that already described in connection with Fig. 1, which alsoserves the purpose of covering the joint between nut G and top of frameA, taking strain off reinforcing piece or bushing M and transferring itto the frame of the machine, giving a finish to this part of themachine.

The construction shown in Fig. 3 is similar to that of Fig. 2, with theexception that the ends of the frame A are secured by a fitting A, andin that the bushing or pipe M is done away with and the upright part Aof the frame continued up through fitting A and its upper end split andthreaded, as already described.

The device herein described and illustrated is very neat in appearance,and by its employment the machine presents a more elegant and mechanicalappearance at the junction of the saddle and handle-bar posts and theframe than has heretofore been possible.

Having thus described my invention, I claim 1. The combination with theseat orhandlebar post of a bicycle, of a tube the upper end of which isexternally threaded, which is furnished with longitudinal slots runningfrom its upper end downward, and which is adapted to receive said seator handle-bar post, a nut furnished with a tapered female thread,adapted to be screwed down on the male thread on said tube in order toclose its split end on said post, and with a male thread upon its lowerportion, and a jam-nut carried on said latter thread, said latter n utserving both as a fastening for said former nut and as a covering forthe joint between said nut and the frame of the machine.

2. The combination with the seat or handlebar post of a bicycle or othervehicle, of a tube adapted to receive said post the end of said tubebeing threaded and furnished with longitudinal slits, a nut with atapered female thread adapted to be screwed down on said male thread toclose the split end of said tube on said post, a male thread on saidnut, and a nut or washer furnished with two female threads one of whichis adapted to engage the thread on said post-carrying tube and the otherthe male thread on said nut.

3. In a bicycle, in combination, a steeringbar the upper end of which isthreaded and furnished with a number of slits, a stationaryball-carrying cup, an adjustable ball-cup adapted to be screwed down onsaid thread on said steering-bar, a nut furnished with two femalethreads of different diameters the smallest of which is adapted to bescrewed down on said thread on said steering-bar to cause the lower partof said nut to engage the upper part of said adjustable cup, and a nutwith a tapered female thread adapted to be screwed down on said taperedthread on said steering-bar and a male thread adapted to engage thelarger female thread in said former nut, all substantially as and forthe purposes set forth.

CHARLES J. GADD. WVitnesses:

CHARLES A. BUTTER, GEO. K. WANNEMAOHER.

